SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Glossary
SCF Reference Manual for the Storage Subsystem—529937-007
Glossary-13
subsystem manager
applications send each command for a subsystem to an instance of the SCP process,
which in turn sends the command to the manager process of the target subsystem.
SCP also processes a few commands itself. It provides security features, version
compatibility, support for tracing, and support for applications implemented as process
pairs.
subsystem manager. A process that performs configuration and management functions for
a Subsystem Control Facility (SCF) subsystem.
subvolume. A group of related files stored on a disk; all the files have the same volume and
subvolume name, but each file has a unique file identifier.
summary report. A brief informational listing of status or configuration information provided
by the Subsystem Control Facility (SCF) STATUS or INFO command. Contrast with
detailed report.
super group. The group of user IDs that have 255 as the group number. This group has
special privileges; many HP utilities have commands or functions that can be executed
only by a member of the super group.
super-group user. A user who can read, write, execute, and purge most files on the
system. Super-group users have user IDs that have 255 as the group number.
SYSnn subvolume. A subvolume on the $SYSTEM volume where the new version of the
HP NonStop Kernel operating system image is located. Also located on the SYSnn
subvolume is system-dependent and RVU-dependent software. nn is an octal number
in the range %00 through %77.
system. A node. All the processors, controllers, firmware, peripheral devices, software, and
related components that are directly connected together to form an entity that is
managed by one HP NonStop operating system image and operated as one computer.
system configuration database. The database file on the $SYSTEM.ZSYSCONF
subvolume that contains configuration information for all system objects that can be
configured by the Subsystem Control Facility (SCF). Configuration information for all
system objects that can be configured by SYSGENR is contained on the
$SYSTEM.SYSnn subvolume. See also configuration file and SYSnn subvolume.
system enclosure. An enclosure for NonStop S-series system components. Processor
enclosures and I/O enclosures are both system enclosures. Contrast with peripheral
enclosure.
system engineer (SE). See service provider.
system load. (1) To start the system; to load the HP NonStop operating system image into
the memory of a processor. (2) The process of loading the operating system. A system
load changes a system from an inactive to an active (or operational) state by loading
software that establishes communication between the operating system and configured
system peripherals.